Spark-arrester



(No Model.)

' G. H.v SHOEMAKER.'

SPARK ARRESTBR. No. 503,171. Patented Aug. 15, 1893.

UNITED STATES PATENT OFFICE.

GEORGE H. SHOEMAKER, OF SOUTH BEND, INDIANA.

SPARK-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 503,171, dated August 15, 1893.

vAppliuation filed October 20, 1892. Serial No. 450.089. (No model.) l

I To @ZZ whom it may concern:

Be it known that I, GEORGE H. SHOEMAKER, a citizen of the United States, residingl at South Bend, in the county of St. Joseph and State of Indiana, have invented a new and useful Spark-Arrester, of which the following is a specification.

My invention relates to improvements in spark arresters in which the inverted screen cone is used with a straight cylinder or of any other desired shape. l

The object of my improvement is to arrest the sparks in asingle cylinder orsmoke stack consisting of a single tube without Hanging the sides from a perpendicular line, or placing another cylinder on the inside, which is accomplished by a spark receiver attached to the side of the cylinder or smoke stack near its upper end and over the holes that have been cut into the smoke stack or cylinder, for the purpose of permitting the sparks to pass into the receiver and thence into a tube attached to the spark receiver. I attain this object by the mechanism illustrated in the accompanying drawing, which is a vertical section of the spark arrester.

Similar letters refer to similar parts.

The rim A is composed of two plates with projecting beads upon the upper edges so flanged as to fit on the top edge of the smoke stack or cylinder C, between which plates is placed the inverted screen cone H and fastened with rivets. Thus the upper end of the device has a good finish and the end of the cone H, is carefully protected from abrasion as well as from the action of the weather. Near the upper end of the smoke stack are out openings B, and over them are placed, at an angle, the pieces e, e, which at their ends J, are secured upon the sides of the cylinder or smoke stack, and thus is formed a chamber for the reception of the sparks from the stack on their passage to the side tube I. At a suitable point F, in this chamber is cut an openL ing for the purpose of attaching the tube I which runs downward ending in a sliding section of the same D which is perforated with small holes d for the escape of smoke and hot air and the generation of a current for the passage of sparks which sparks find a lodgment in the section D of the tube I closed at its bottom. This section D, is detachably held on the tube I, by means of the pin d, which passes through both.

At the top of the cylinder 0, are fixed hooks or clamps G, for the purpose of holding the rim A in position and permitting the removal of said rim A with inverter screen cone H at any time.

I am aware that prior to my invention spark arresting machines have been made with screens in connection with Hanging sides and double cylinders or partitions between the outside` cylinder and the screen. I therefore do not claim such a combination broadly, but

What Ido claim as my invention, and desire to secure by Letters Patent, is-

l. In a spark arrester, the combination of the cylinder C, with the inverted screen cone H, and the rim A, covering the ends of the cylinder and the cone, substantially in the manner and for the purposes set forth.

2. In combination of the screen cone H, with the cylinder C, having openings B, near its upper end and the spark receiving chamber E, fori/ned of pieces e, e, placed at an angle on the sides of the cylinder and over said openings B, and the tube I, connected at'its upper end to the lower side of the said ohamber and having at its lower end the detachable and perforated section D, all as and for the purposes set forth.

GEORGE H. SHOEMAKER.

Witnesses:

F. J. LEwIs MEYER, S. H. KAHN. 

